具有非均质 Dirichlet 边界条件的稳定广义 Navier-Stokes 方程的有限元离散化

IF 2.8 2区数学 Q1 MATHEMATICS, APPLIED

SIAM Journal on Numerical Analysis Pub Date : 2024-07-23 DOI:10.1137/23m1607398

Julius Jeßberger, Alex Kaltenbach

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引用次数: 0

摘要

SIAM 数值分析期刊》第 62 卷第 4 期第 1660-1686 页，2024 年 8 月。摘要。我们针对具有剪切粘度的稳定广义 Navier-Stokes 流体方程提出了一种有限元离散化方法，该方法具有非均质 Dirichlet 边界条件和非均质发散约束。我们建立了离散解的（弱）收敛性以及速度矢量场和标量运动压力的先验误差估计。数值实验补充了理论发现。

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Finite Element Discretization of the Steady, Generalized Navier–Stokes Equations with Inhomogeneous Dirichlet Boundary Conditions

SIAM Journal on Numerical Analysis, Volume 62, Issue 4, Page 1660-1686, August 2024.
Abstract. We propose a finite element discretization for the steady, generalized Navier–Stokes equations for fluids with shear-dependent viscosity, completed with inhomogeneous Dirichlet boundary conditions and an inhomogeneous divergence constraint. We establish (weak) convergence of discrete solutions as well as a priori error estimates for the velocity vector field and the scalar kinematic pressure. Numerical experiments complement the theoretical findings.

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来源期刊

SIAM Journal on Numerical Analysis 数学-应用数学

CiteScore

4.80

自引率

6.90%

发文量

110

审稿时长

4-8 weeks

期刊介绍： SIAM Journal on Numerical Analysis (SINUM) contains research articles on the development and analysis of numerical methods. Topics include the rigorous study of convergence of algorithms, their accuracy, their stability, and their computational complexity. Also included are results in mathematical analysis that contribute to algorithm analysis, and computational results that demonstrate algorithm behavior and applicability.